Wrasse - Fish-Only TanksThe Wrasse in this category are very beautiful and active fish that will make a wonderful addition to any moderate to large sized marine fish only aquarium. Because of their diet in nature, these fish are ill-suited for a reef aquarium, as they will readily consume most crabs, snails and tube worms. The ideal aquarium will have plenty of live rock for hiding and a sandy substrate for burrowing into at night. Looking for Reef Safe Wrasse?